现象：QUdpSocket bing ip加端口失败

//bool tf =m_pSocket->bind(QHostAddress("192.168.112.100"),m_port );//失败 

//    QString string("192.168.112.10");

//    QHostAddress address(QHostAddress::LocalHost);//QHostAddress::Any

//    bool tf =address.setAddress( string );

//    tf =m_pSocket->bind(address,m_port );//失败

//    quint32 ip4Add = 192<<24|168<<16|112<<8|10;

//    QHostAddress address(QHostAddress::Any);//QHostAddress::LocalHost

//    address.setAddress( ip4Add );

//    bool tf =m_pSocket->bind(address,m_port );//失败

改为：如下都可以， 只是增加了一个 选项， 默认 的0 帮助文档说在window上是ShareAddress ， 但是不其作用， 需要

quint32 ip4Add = 192<<24|168<<16|112<<8|100;

    bool tf =m_pSocket->bind(QHostAddress(ip4Add),6000,QAbstractSocket::ShareAddress );

    tf =m_pSocket->bind(QHostAddress(ip4Add),6000,QAbstractSocket::ReuseAddressHint| QAbstractSocket::ShareAddress | QAbstractSocket::DontShareAddress );

    //tf =m_pSocket->bind(QHostAddress("192.168.112.100"),6001,QAbstractSocket::ReuseAddressHint| QAbstractSocket::ShareAddress | QAbstractSocket::DontShareAddress );//失败

    //tf =m_pSocket->bind(QHostAddress("192.168.112.100"),6002,QAbstractSocket::ReuseAddressHint );

    //tf =m_pSocket->bind(QHostAddress("192.168.112.100"),6003,QAbstractSocket::ShareAddress  );

    //tf =m_pSocket->bind(QHostAddress("192.168.112.100"),6004,QAbstractSocket::DontShareAddress );

    tf =m_pSocket->bind(QHostAddress("192.168.112.100"),6005,QAbstractSocket::ReuseAddressHint | QAbstractSocket::ShareAddress  );

    tf =m_pSocket->bind(QHostAddress("192.168.112.100"),6006,QAbstractSocket::DontShareAddress | QAbstractSocket::ReuseAddressHint  );

    tf =m_pSocket->bind(QHostAddress("192.168.112.100"),6007,QAbstractSocket::DontShareAddress | QAbstractSocket::ShareAddress  );